/* Copyright (C) 2013 by Ben Martin */ /* * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _ALREADY_INCLUDED_GNETWORK_H_ #define _ALREADY_INCLUDED_GNETWORK_H_ #include #define IPADDRESS_STRING_LENGTH_T 100 /** * Get a string that describes this host. It may be something * like "foobar" if the user has decided to call their laptop that name. * So you might not be able to resolve the returned hostname on a remote * computer. Data is copied to outstring and outstring is returned. */ char* ff_gethostname( char* outstring, int outstring_sz ); /** * Get the network accessible IP address of the local machine. * * If the machine is multihomed you had better hope that traffic * from the network can reach all NICs on the host. * * The output is copied to outstring which is assumed to be * at least ipaddress_string_length_t bytes long. The outstring is * also returned. */ extern char* getNetworkAddress( char* outstring ); extern char* HostPortPack( char* hostname, int port ); extern char* HostPortUnpack( char* packed, int* port, int port_default ); /** * This is ZUUID_LEN. Because that length is stable and to avoid bringing in * the czmq header file it is redeclared from base form here. */ #define FF_UUID_BINARY_SIZE 16 /** * min length of a buffer that will contain an ascii string serialiation of a uuid */ #define FF_UUID_STRING_SIZE 33 /** * generate a new uuid and stringify it into the target area provided * after the call target should contain something like * 1b4e28ba-2fa1-11d2-883f-0016d3cca427 * with the trailing NUL. Before the call target needs to be at least * FF_UUID_STRING_SIZE bytes long. * the 'target' is also the return value. */ char* ff_uuid_generate( char* target ); /** * This test might be improved in the future. * You pass a string which might have the form of a UUID (or be "\0 whatever") or * just be a null pointer, and the function returns true if the uuid string * you passed in conforms to being a uuid. */ extern int ff_uuid_isValid( char* uuid ); #endif